bast fibre


bast fibre

      soft, woody fibre obtained from stems of dicotyledonous (dicotyledon) plants (flowering plants with net-veined leaves) and used for textiles and cordage. Such fibres, usually characterized by fineness and flexibility, are also known as “soft” fibres, distinguishing them from the coarser, less flexible fibres of the leaf, or “hard,” fibre group. Commercially useful bast fibres include flax, hemp, jute, kenaf, ramie, roselle, sunn, and urena.

      Fibre bundles are often several feet long and composed of overlapping cellulose fibres and a cohesive gum, or pectin, which strengthens plant stems. The fibres are located between the epidermis, or bark surface, and an inner woody core. In harvesting bast fibres, the plant stalks are cut off close to the base or pulled up. The fibres are usually freed from the stalk by retting but are sometimes obtained by decortication, a manual or mechanical peeling operation. The released fibre bundles, called strands, are frequently used without additional separation, in which case they are called fibres. flax and ramie strands, however, are usually separated into individual fibre cells, or true plant fibres.

      Most bast fibres are quite strong and are widely used in the manufacture of ropes and twines, bagging materials, and heavy-duty industrial fabrics. In the late 20th century, jute, used mainly for sacking and wrapping purposes, led other fibres in world production but suffered from intense competition from synthetic fibres. Flax, traditionally valued as raw material for linen yarn and fine linen fabrics, is decreasing in importance for luxury textile applications as other fibres, both natural and man-made, become more plentiful.

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Universalium. 2010.

Look at other dictionaries:

  • Bast fibre — (fiber) or skin fibre is plant fibre collected from the phloem (the inner bark or the skin) or bast surrounding the stem of certain, mainly dicotyledonic, plants. They support the conductive cells of the phloem and provide strength to the stem.… …   Wikipedia

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  • bast — [bast] noun fibre obtained from plants and used for matting and cord, in particular the inner bark of a lime tree. Origin OE bæst, of unknown origin …   English new terms dictionary

  • fibre — /ˈfaɪbə / (say fuybuh) noun 1. a fine thread like piece, as of cotton, jute, or asbestos. 2. a slender filament. 3. filaments collectively. 4. matter composed of filaments. 5. fibrous structure. 6. character: moral fibre. 7. a. filamentous matter …   Australian English dictionary

  • bast fiber — noun strong woody fibers obtained especially from the phloem of from various plants • Syn: ↑bast • Hypernyms: ↑natural fiber, ↑natural fibre * * * noun : bast 2 * * * bast (def. 2) …   Useful english dictionary

  • bast — noun /bæst/ Fibre made from the phloem of certain plants and used for matting and cord. I thought I saw Him in the Long Walk there, by the bed of Nelly Roche, tending a fallen flower with a wisp of bast …   Wiktionary

  • bast — n. the inner bark of lime, or other flexible fibrous bark, used as fibre in matting etc. Etymology: OE baeligst f. Gmc …   Useful english dictionary

  • Bast — n. the inner bark of lime, or other flexible fibrous bark, used as fibre in matting etc. Etymology: OE baeligst f. Gmc …   Useful english dictionary

  • natural fibre — ▪ raw material Introduction  any hairlike raw material directly obtainable from an animal, vegetable, or mineral source and convertible into nonwoven fabrics such as felt or paper or, after spinning into yarns, into woven cloth. A natural fibre… …   Universalium

  • natural fibre — noun fiber derived from plants or animals • Syn: ↑natural fiber • Hypernyms: ↑fiber, ↑fibre • Hyponyms: ↑pandanus, ↑New Zealand cotton, ↑bowstring hemp …   Useful english dictionary


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